    #include <iostream>
    using namespace std;
    int main()
    {
    int a;
    cin>>a;
    char c;
    cin>>c;
    int b;
    cin>>b;
    if(c=='+')
    {
    cout<<a+b;
    }
    else if (c=='-')
    {
    cout<<a-b;
    }
    else if (c=='*')
    {
    cout<<a*b;
    }
    else if (c=='/')
    {
    cout<<a/b;
    }
    return 1;

}


